arkei | e45414a2f8f7ca67e5438949f1ae1b6e0470007bcd8a55eb058cf87f6b078639

Analysis

max time kernel
124s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220718-en
resource tags

arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2022, 22:35

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General

Target
09f2b519e22c52721d33d5c3c0ac1f5e.exe
Size 2.5MB
Sample220720-2hphqaahe6
SHA256 e45414a2f8f7ca67e5438949f1ae1b6e0470007bcd8a55eb058cf87f6b078639
MD5 09f2b519e22c52721d33d5c3c0ac1f5e
SHA1 b451e08f7d58118cf62c87f426dd95dda5aabd3e
SHA512 2cdf51fb04c5fae673d6d20cb3229e8c3fda932bf5a4ff167465d0d99407f1183792bb98dbf25d154d1fbc174a78e52da5bf38fae6fb82b6498fc2e50a6c1c5f
MD5 SHA1 SHA512

Score

10^/10

arkei default spyware stealer

Malware Config

Extracted

Family

arkei

Botnet

Default

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei

Loads dropped DLL 2 IoCs

pid	Process
202944	AppLaunch.exe
202944	AppLaunch.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4272 set thread context of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	77

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AppLaunch.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
203224	timeout.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 202932	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	76
PID 4272 wrote to memory of 202932	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	76
PID 4272 wrote to memory of 202932	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	76
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	77
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	77
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	77
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	77
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	77
PID 202944 wrote to memory of 203172	202944	AppLaunch.exe	78
PID 202944 wrote to memory of 203172	202944	AppLaunch.exe	78
PID 202944 wrote to memory of 203172	202944	AppLaunch.exe	78
PID 203172 wrote to memory of 203224	203172	cmd.exe	80
PID 203172 wrote to memory of 203224	203172	cmd.exe	80
PID 203172 wrote to memory of 203224	203172	cmd.exe	80

C:\Users\Admin\AppData\Local\Temp\09f2b519e22c52721d33d5c3c0ac1f5e.exe
"C:\Users\Admin\AppData\Local\Temp\09f2b519e22c52721d33d5c3c0ac1f5e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  PID:202932
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:202944
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:203172
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:203224

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 133KB
SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
MD5 8f73c08a9660691143661bf7332c3c27
SHA1 37fa65dd737c50fda710fdbde89e51374d0c204a
SHA512 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
SSDEEP 3072:7Gyzk/x2Wp53pUzPoNpj/kVghp1qt/dXDyp4D2JJJvPhrSeTuk:6yQ2Wp53iO/kVghp12/dXDyyD2JJJvPR
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 1.2MB
SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
MD5 bfac4e3c5908856ba17d41edcd455a51
SHA1 8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA512 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
SSDEEP 24576:Sb5zzlswYNYLVJAwfpeYQ1Dw/fEE8DhSJVIVfRyAkgO6S/V/jbHpls4MSRSMxkoo:4zW5ygDwnEZIYkjgWjblMSRSMqH
MD5 SHA1 SHA512 SSDEEP

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memory/202944-132-0x0000000000400000-0x000000000043D000-memory.dmp

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memory/202944-139-0x0000000000400000-0x000000000043D000-memory.dmp

Download

memory/202944-140-0x0000000000400000-0x000000000043D000-memory.dmp

Download

memory/202944-141-0x0000000060900000-0x0000000060992000-memory.dmp

Download

memory/202944-163-0x0000000000400000-0x000000000043D000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads